Full metadata record
DC FieldValueLanguage
dc.contributor.author王彝琳en_US
dc.contributor.authorYi-Lin Wangen_US
dc.contributor.author蔡文祥en_US
dc.contributor.authorWen-Hsiang Tsaien_US
dc.date.accessioned2014-12-12T02:56:38Z-
dc.date.available2014-12-12T02:56:38Z-
dc.date.issued2005en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT009323545en_US
dc.identifier.urihttp://hdl.handle.net/11536/79071-
dc.description.abstract隨著行動無線網路的進步以及手機使用率的普及,越來越多樣化的多媒體資料在網路上供使用者利用行動裝置瀏覽、使用。本論文主要針對行動裝置上普遍使用的3GP影音格式以及文字訊息,利用資訊隱藏和數位浮水印的技術,在行動裝置的平台上作版權保護、秘密通訊、秘密分享與驗證之研究與應用。在版權保護方面,我們提出一個架構,來做到限定一個帳號只能在一個特定的行動裝置上使用以及一個可無失真還原的數位浮水印技術來保護視訊檔案。在秘密傳輸方面,我們將秘密資訊隱藏在視訊檔案中,再透過網路來傳遞秘密資訊。在秘密分享方面,我們改善前人所提出的方法,將系統移植到行動裝置上實現。針對廣泛使用的手機簡訊,我們提出一個方法,可以驗證所接收到的簡訊內容的真偽及發送方。最後,我們提出相關的實驗結果證明所提出的方法的可行性。zh_TW
dc.description.abstractWith the increase of population having mobile phones as well as the advance of high-speed transmission capability of the wireless network, more and more multimedia data are transmitted through and displayed on public networks for mobile devices. In this study, several methods for information hiding applications, such as copyright protection, covert communication, secret sharing, and text authentication, on mobile devices are proposed. In order to restrict a user account to a specific mobile phone for downloading videos, a copyright protection method is proposed. Because users do not want to see their video productions suffering from downloading by illegal users, a copyright protection method by a lossless visible watermarking technique for videos is proposed. In order to transmit large-volume secret messages on the Internet securely, a covert communication by videos is proposed. Because of the convenience of getting shares by mobile networks, storing shares in mobile devices, and transmitting shares by the SMS, a secret sharing technique by mobile devices is proposed. Furthermore, because of the large number of usages of short messages, an authentication method for short messages is proposed. Good experimental results show the feasibility of the proposed methods.en_US
dc.language.isoen_USen_US
dc.subject可視浮水印zh_TW
dc.subject行動裝置zh_TW
dc.subject資訊隱藏zh_TW
dc.subject版權保護zh_TW
dc.subject無失真zh_TW
dc.subjectwatermarken_US
dc.subjectmobile deviceen_US
dc.subjectinformation hidingen_US
dc.subjectcopyright protectionen_US
dc.subjectlosslessen_US
dc.title在行動裝置上作視訊及文字之資訊隱藏研究zh_TW
dc.titleA Study on Techniques and Applications of Information Hiding in Videos and Messages via Mobile Phonesen_US
dc.typeThesisen_US
dc.contributor.department資訊科學與工程研究所zh_TW
Appears in Collections:Thesis


Files in This Item:

  1. 354501.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.